NIVO | |
---|---|
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Hex triplet | #404735 |
sRGBB ( r, g, b) | (64, 71, 53) |
HSV ( h, s, v) | (83°, 25%, 28%) |
CIELChuv ( L, C, h) | (29, 12, 104°) |
Source | Federal Standard 595 [1] |
B: Normalized to [0–255] (byte) |
NIVO, abbreviated from Night Invisible Varnish Orfordness (or "Night Varnish Orfordness"), [2] was a dark grey-green overall finish applied to British night bomber aircraft in the inter-war period (1918–1939).
Developed in 1918 by the experimental station at Orford Ness, as a low-visibility colouring for the Royal Air Force it had a sheen to match that of open water on a moonlit night. [3]
It was applied to aircraft from 1918 and was used on the Vickers Virginia, Handley Page Hyderabad, Handley Page Hinaidi, Handley Page Heyfords and Fairey Hendon bombers.
By the mid-1930s, tests had determined that the varnish was too reflective when searchlights were shone on it. [3] NIVO was phased out in the late 1930s, and had been discontinued by the time of the arrival of the new British medium bombers – the Vickers Wellington, Handley Page Hampden and Armstrong Whitworth Whitley.
NIVO is covered by Federal Standard 595 colour FS:34096 [4] [5]
NIVO | |
---|---|
![]() | |
Hex triplet | #404735 |
sRGBB ( r, g, b) | (64, 71, 53) |
HSV ( h, s, v) | (83°, 25%, 28%) |
CIELChuv ( L, C, h) | (29, 12, 104°) |
Source | Federal Standard 595 [1] |
B: Normalized to [0–255] (byte) |
NIVO, abbreviated from Night Invisible Varnish Orfordness (or "Night Varnish Orfordness"), [2] was a dark grey-green overall finish applied to British night bomber aircraft in the inter-war period (1918–1939).
Developed in 1918 by the experimental station at Orford Ness, as a low-visibility colouring for the Royal Air Force it had a sheen to match that of open water on a moonlit night. [3]
It was applied to aircraft from 1918 and was used on the Vickers Virginia, Handley Page Hyderabad, Handley Page Hinaidi, Handley Page Heyfords and Fairey Hendon bombers.
By the mid-1930s, tests had determined that the varnish was too reflective when searchlights were shone on it. [3] NIVO was phased out in the late 1930s, and had been discontinued by the time of the arrival of the new British medium bombers – the Vickers Wellington, Handley Page Hampden and Armstrong Whitworth Whitley.
NIVO is covered by Federal Standard 595 colour FS:34096 [4] [5]